?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=HASAN&rft.au=HASAN%2C+AMRUL&rft.aufirst=AMRUL&rft.title=Alat+Bantu+Pembuatan+Cincin+Sumur+Gali&rft.inst=Poltekkes+Tanjungkarag&rft.degree=Diploma&rft.date=27+September+2022